April 12, 2016 AT 12:55 pm

Making Math from the NYC Subway Real-Time API @NYCTSubway

I started tracking all subway trains one day and completely forgot about it. Several weeks later I had a 3GB large data dump full of all the arrivals for 1, 2, 3, 4, 5, 6, L, SI and GC (the latter two being Staten Island railway and Grand Central Shuttle).